Lesson plan

Foam in foods

Summary
Make meringues, find out what makes the foam in them. Make other foamy foods.
Science content
Chemistry: States of Matter, Properties of Materials (K-7)
Chemistry: Atoms, Molecules (3-7)
Chemistry: Physical Changes, Solutions, Mixtures and Separating (2, 4, 5, 6)
Activities in this lesson
Procedure

Make meringues.
While they are cooking find out what molecules in them make the foam (the protein in the egg whites).

Make other foamy foods:
milkshake - blow bubbles into milk to make a foam - the fat in the milk stablizes the bubbles to make the foam
gastro foam - pictured is a basil-lecithin foam

Grades taught
Gr 4
Gr 5
Teaching Site
ingridscience afterschool